Carbon Capture & CO₂ Compression Equipment worked example
Blower Energy Cost at 58% average blower load share: a worked example
This worked example runs the blower energy cost numbers for a tougher week than the baseline: 58% average blower load share instead of the typical 80%. Estimate blower operating cost for moving flue gas, air, or process gas through capture equipment, ducts, filters, and contactors.
The inputs for this scenario
- Blower operating hours: 100 hr (held at the documented default)
- Blower energy cost per hour: 45 $ / hr (held at the documented default)
- Average blower load share: 58 % (the input this scenario stresses; the baseline uses 80)
- Fixed blower demand cost: 250 $ (held at the documented default)
Working through the calculation
- The calculation starts from the formula this tool documents: Variable blower energy cost = blower operating hours × blower energy cost per hour × average blower load share.
- Total blower energy cost works out to 2,860 $ at these inputs, and this is the headline figure for the scenario.
- Blower cost per operating hour works out to 28.6 $ / piece at these inputs.
- Variable blower energy cost works out to 2,610 $ at these inputs.
- Fixed blower demand cost works out to 250 $ at these inputs.
How this compares with the baseline
- Against the tool's baseline example, where average blower load share sits at 80% and the headline result is 3,850 $, this scenario comes in 25.71% below the baseline at 2,860 $.
- Use it when costing the blower line item of a capture skid, comparing tariff scenarios, or quantifying the energy penalty of running a blower below or above its best-efficiency point. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.
Results at a glance
- Total blower energy cost: 2,860 $ (headline result)
- Blower cost per operating hour: 28.6 $ / piece
- Variable blower energy cost: 2,610 $
- Fixed blower demand cost: 250 $
Run it with your numbers
- To rerun this with your own numbers, open the live Blower Energy Cost calculator, set average blower load share to your actual value, and adjust the remaining inputs to match your operation.
Last reviewed 2026-05-12.